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ZIP 80109 · Castle Rock

Who lives in ZIP code 80109 (Castle Rock, CO): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Castle Rock, CO · Douglas County

uszips 2026
People28,400
Median age36.9
Household income$155,025
Home value$675,700
Median rent$2,304/mo
Poverty3.3%
College degree+57.8%
Commute27 min

Place

Metro area
Denver-Aurora-Centennial, CO
Wider region
Denver-Aurora-Greeley, CO
Time zone
Mountain
Density
422 / sq mi
Housing units
9,728

County

Douglas100%

Share of the ZIP's people in each county.

Age mix

Under 1015.3%
10–1914.5%
20s9.9%
30s16.2%
40s16.0%
50s12.0%
60s9.7%
70s4.4%
80+2.0%

9.9% are 65 or older; 72.7% are adults.

Household income

Under $25K5.7%
$25K–50K6.8%
$50K–75K6.1%
$75K–100K7.5%
$100K–150K20.5%
$150K+53.2%

73.7% of households earn $100K+. Median per person: $64,114.

Education (adults 25+)

Less than high school1.7%
High school12.2%
Some college28.3%
Bachelor's39.2%
Graduate18.6%

44.5% of degrees are in STEM fields.

Race

White83.1%
Black1.0%
Asian2.4%
Native American0.2%
Pacific Islander0.2%
Other2.9%
Two or more10.2%

11.1% Hispanic or Latino (of any race).

Households & family

Married
59.3%
Never married
26.7%
Divorced
11.0%
Widowed
3.1%
Family size
3.26
Dual-income families
69.7%

Housing

Own their home
81.4%
Rent burden
38.1%
Men / women
50% / 50%

Work

In labor force
75.2%
Unemployment
6.2%
Self-employed
14.6%
Farmers
0.4%

Community

Charitable givers
49.6%
Veterans
6.8%
With a disability
6.8%
No health insurance
6.0%
Limited English
0.5%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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